Görünür ışık iletişimi tabanlı yayıncılığın deneysel değerlendirmesi

Visible Light Communication (VLC) uses light-emitting diodes (LED)s to transmit data by turning them on and off at very high speeds, too fast for the human eye to perceive. In outdoor environments, LED-based streetlights can be utilized as VLC transmitters. Given the ubiquity of streetlights, they are particularly useful for outdoor broadcasting as required in public safety systems. In this thesis, we develop an FPGA-based VLC system with on- off keying using an LED-based streetlight. The system is built upon the Eclypse Z7 FPGA platform integrated with opto-electronic transmitter and receiver front ends. We present bit error rate (BER) and signal-to-noise ratio (SNR) performance results in indoor and outdoor environments, at various transmission distances.